CVE-2021-34769 describes multiple denial-of-service (DoS) vulnerabilities in Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers. These flaws stem from insufficient validation of CAPWAP packets, allowing an unauthenticated, remote attacker to send a malformed packet and cause the device to crash and reload. With a CVSS score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.15.1xbsCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* | ||
3.15.2xbsCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* | ||
17.3.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:* | ||
17.3.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:* | ||
17.3.2aCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.